Classical philosophical theism maintained the ontological distinction between God and creative world that is necessary for any genuine theism by conceiving them to be of different substances, with particular attributes predicated of each.
I consist of body and soul - in the worlds of a child. And why shouldn't we speak like children? But the enlightened, the knowledgealbe would say: I am body through and through, nothing more; and the soul is just a word for something on the body.
So Whitehead's metaphysics doesn't fit very well on to physics as we understand the process of the world.
Philosophically considered, the universe is composed of Nature and the Soul.
I think part of Western metaphysical dualism is, we're always being asked to choose one over the other.
The spirit of Plato dies hard. We have been unable to escape the philosophical tradition that what we can see and measure in the world is merely the superficial and imperfect representation of an underlying reality.
Internal and external nature, mind and matter, are in time and space, and are bound by the law of causation.
It may be seriously questioned whether the philosophies... which isolate mind and set it over against the world did not have their origin in the fact that the reflective or theoretical class of men elaborated a large stock of ideas which social conditions did not allow them to act upon and test. Consequently men were thrown back into their own thoughts as ends in themselves.